EP0570276B1 - Verfahren zum Spritzgiessen von mehreren verschiedenen Kunststoffen für eine Kappe mit dekorativen Streifen und nach diesem Verfahren hergestellte Kappen - Google Patents

Verfahren zum Spritzgiessen von mehreren verschiedenen Kunststoffen für eine Kappe mit dekorativen Streifen und nach diesem Verfahren hergestellte Kappen Download PDF

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Publication number
EP0570276B1
EP0570276B1 EP93401206A EP93401206A EP0570276B1 EP 0570276 B1 EP0570276 B1 EP 0570276B1 EP 93401206 A EP93401206 A EP 93401206A EP 93401206 A EP93401206 A EP 93401206A EP 0570276 B1 EP0570276 B1 EP 0570276B1
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EP
European Patent Office
Prior art keywords
injection
decorative
cover
moulding
bead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93401206A
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English (en)
French (fr)
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EP0570276A1 (de
Inventor
Christian Tournalia
Porin Fernandez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRISTOUR SA
Original Assignee
CRISTOUR SA
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Publication date
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Publication of EP0570276A1 publication Critical patent/EP0570276A1/de
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Publication of EP0570276B1 publication Critical patent/EP0570276B1/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0833—Hinges without elastic bias
    • B65D47/0838—Hinges without elastic bias located at an edge of the base element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers

Definitions

  • the present invention relates to a method of molding, by injection of several different plastics, of a decorative cord capsule and to the capsules obtained by this method. More particularly, the present invention relates to such a method which consists in making, in a mold, several successive and consecutive injections of different plastic materials and, at least, in two or three materials of different composition and / or colors to obtain this same mold, a container capsule provided with at least one peripheral decorative cord of a certain color and integral with its main body, or else with its cover, the latter being of different colors from the cord and / or made of plastics different.
  • the present invention relates to the various capsules which can be obtained by the implementation of this process in a mold adapted to provide, in the consecutive phases of its operation, several molding impressions for the main body and the various cords, and using a jar press with perpendicular injections.
  • Another prior injection molding process is known, which consists in using a mold having an injection chamber whose volume can be modified at the request during successive injections to successively constitute several parts of the part to be produced, these injections being made under temperature and pressure conditions such that the material injected in a phase following a previous phase penetrates into the material injected during this previous phase, that is to say that the materials constituting the different parts have an interpenetration between them to form a connection, for example of the "tenon and mortise" type, having good mechanical strength.
  • This prior method has the disadvantage of requiring well-defined injection phases both from a temperature and pressure point of view, that is to say successive injection phases at strictly controlled times and n 'not necessarily having identical times between successive injection phases, which has a significant drawback for mass molding work.
  • patent JP-A-01,304,919 a process is known for molding synthetic resins of different types, where each resin is molded independently of the other or the others, by providing in two male and female molds, internal partitioning parts which determine filling cavities between them for the injected resins, these partitioning parts being able to be moved freely downwardly to constitute stop barriers for the first resin injected, and upwardly to form cavities for a second resin injected consecutively.
  • this method of molding by successive and consecutive injections of several different plastic materials for obtaining in particular a capsule with decorative cords integral with its envelope wall, which envelope, provided with a top comprising a pouring orifice as well as a cover provided with a hinge at the level of this top, must be able to be engaged on the neck of a container, this method using, associated with a jar press allowing perpendicular injections, a single and single mold in which are defined a first cavity to the dimensions of the main body or envelope of the capsule and a second lateral cavity to the dimensions of the cover in the open position having a cavity of hinge connection at the level of the top of the first cavity comprising the orifice of pouring, this process being remarkable in that the top of the first imprint is overcome vertically by a first punch whose front face protects the pouring orifice, covers this top and carries externally a first annular slide which can be advanced or retracted relative to the level of the top of the first impression, so that, during the first
  • a second decorative bead located on the edge peripheral to the cover by providing in the mold a second punch whose front face defines the inner wall of this cover and a second annular slide surrounding this second punch, the front edge of which defines, in the retracted position, a peripheral housing for molding the second decorative bead which can be made of a third plastic material injected at the same time as the phase d injection of the first decorative bead in second plastic material.
  • a third decorative bead located on the lower peripheral edge of the envelope by providing in the mold a third punch located and mounted opposite to the first punch and surrounded by a third slide, the front edge defines, in the retracted position, a peripheral housing for molding the third decorative bead which can be formed at the same time as the injection phase of the first and second decorative cords if these are provided, but otherwise following the injection phase for molding the casing, the hinge and the cover.
  • the present invention also relates to a capsule comprising an envelope with a top having a pouring orifice and a cover having a connecting hinge at the level of this top, this capsule being obtained by implementing the method according to the present invention and being remarkable in that the top of its envelope is provided with a first decorative peripheral molded bead, this capsule being able to be, on request, provided with a second bead on the peripheral edge of its cover, as well as a third cord located on the lower peripheral edge of its envelope, which may optionally include, at any location on its outer wall, one or more external peripheral cords, this envelope, with its top and its cover.
  • the decorative cord (s) being molded in a first plastic material, while the decorative cord (s) are all provided injection molded from different plastic materials from each other and from the first plastic material, all of these materials differing essentially in their own color, but each of them, however, preferably being made from polypropylene.
  • the capsule As shown in Figures 1 and 2, the capsule, indicated as a whole by the reference 1, consists of a casing 2 comprising a top wall 3 provided with a pouring orifice 4 and having a connecting hinge 5 with its cover 6 (shown still open in the molding position in FIG. 1 and in the closed position in FIG. 2) provided with a stud 7 for plugging the pouring orifice 4.
  • a decorative bead 8 At the upper periphery of the casing 2 and at its top wall 3, is located a decorative bead 8 , except at the right of the hinge 5, housed integrally in a step 9 (tinted in black to facilitate understanding), at the edge of this top wall 3.
  • This envelope 2 is further provided with a second decorative cord 10 (also tinted in black) situated integrally from its peripheral lower edge and intended to rest or partially engage on the upper part of a container whose neck is tightly engaged in an internal sleeve 13 integral with the underside of the top wall 3 and surrounding the pouring orifice 4.
  • a second decorative cord 10 also tinted in black
  • the complete envelope 2, the connecting hinge 5 and the cover 6 are made of the same first plastic material, while the decorative cord 8 housed integrally in the upper step 9, as well as the second decorative cord 10 consist respectively of two different plastics in coloring of the first material, note being taken however that, in certain cases, their coloring can be chosen identical but different from that of the first material.
  • FIG. 3 and 4 showing the constitution of the mold for obtaining a capsule of the type of that of Figures 1 and 2 but having a single decorative bead 8, peripheral to its top wall 3, we have omitted to represent the imprint of the hinge 5 and the cover 6 to facilitate understanding.
  • This mold therefore comprises an imprint for the envelope 2 with its top wall 3, which is surmounted by the front face of a vertical punch 11 on which is engaged, in a sliding manner, an annular slide 12 whose front edge protrudes, in the low position (FIG.
  • step 9 being designed to securely accommodate a decorative cord 8, the imprint of which is obtained as a result of the recoil in the high position (FIG. 4) of the slide 12, the front edge of which comes at the level of the front face of the punch, this cord 8 being molded by an injection, successive to the first injection, of a second plastic material, in particular different in coloring of the first material.
  • another decorative bead can be formed by molding, at the peripheral edge of the cover, as well as yet another decorative bead situated on the lower peripheral edge of the envelope (as shown in FIGS. 1 and 2) by providing, in the mold, several punches and corresponding slides constituted in the same manner as those of FIGS. 3 and 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Closures For Containers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Claims (5)

  1. Verfahren zum aufeinanderfolgenden und fortlaufenden Spritzgiessen von mehreren verschiedenen Kunststoffen, insbesondere zur Erlangung einer Kappe mit dekorativen, mit deren Mantelwand fest verbundenen Streifen, wobei der Mantel, der mit einem Oberteil versehen ist, das eine Ausgußöffnung sowie ein mit einem Gelenk auf der Höhe des Oberteils versehenen Deckel aufweist, auf dem Auslaß eines Behälters angeordnet werden können muß, wobei dieses Verfahren eine mit einer senkrechte Spritzungen erlaubenden Zylinderpresse verbundene einzige und einzigartige Spritzform verwendet, in der eine erste Matrize in den Abmessungen des Hauptkörpers oder Mantels (2) der Kappe und eine zweite seitliche Matrize in den Abmessungen des Deckels (6) in geöffneter Position definiert sind, die eine Matrize für das Verbindungsgelenk (5) in Höhe des Oberteils (3) der ersten, die Ausgußöffnung (4) enthaltenden Matrize hat, dadurch gekennzeichnet, daß das Oberteil (3) vertikal durch eine erste Dornstange (11) überragt wird, deren Stirnfläche die Ausgußöffnung bestimmt, das Oberteil (3) bedeckt und auf der Außenseite einen ersten Ringschieber (12) trägt, der in bezug auf die Höhe dieses Oberteils (3) vor- oder zurückgeschoben werden kann, so daß während der ersten Spritzphase eines ersten Kunststoffes für das Formen des Mantels (2), des Gelenks (5) und des Deckels (6) infolge des Vorliegens des stirnseitigen Randes des ersten Ringschiebers (12) in der abgesenkten Position, in der er die Dornstange (11) umgibt und deren Stirnfläche um die Höhe der Stufe (9) überragt, eine um das Oberteil (3) umlaufende Stufe (9) geformt wird, die so ausgebildet ist, daß sie einen ersten dekorativen Streifen (8) aufnimmt, der während der zweiten, der ersten Phase nachfolgenden Spritzphase eines zweiten Kunststoffes nach dem unmittelbaren Rücklauf oder Rückzug des Schiebers in die obere Position gegossen wird, damit sein stirnseitiger Rand dann in der Höhe der Stirnfläche der Dornstange liegt, wenn die zweite Spritzphase beginnt.
  2. Spritzgiessverfahren nach Anspruch 1, dadurch gekennzeichnet, daß es anwendbar ist, um einen zweiten dekorativen Streifen, der auf dem umlaufenden Rand des Deckels (6) liegt, zu formen, indem in der Spritzform eine zweite Dornstange, deren Stirnfläche die Innenwand des Deckels (6) definiert, und ein zweiter, die zweite Dornstange umgebender Ringschieber vorgesehen werden, dessen stirnseitiger Rand in Rückzugposition eine umlaufende Aufnahme für das Gießen des zweiten dekorativen Streifens definiert, der aus einem dritten Kunststoff gebildet werden kann, welcher gleichzeitig mit der Spritzphase des ersten dekorativen Streifens aus dem zweiten Kunststoff gespritzt wird.
  3. Spritzgiessverfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß es anwendbar ist, um einen dritten dekorativen Streifen (10) zu formen, der auf dem unteren umlaufenden Rand des Mantels (2) liegt, indem in der Spritzform eine dritte Dornstange vorgesehen wird, die entgegengesetzt zur ersten Dornstange (11) liegt und angebracht ist und durch einen dritten Schieber umgeben wird, dessen stirnseitiger Rand in Rückzugposition eine umlaufende Aufnahme für das Gießen des dritten dekorativen Streifens (10) definiert, der gleichzeitig mit der Spritzphase des ersten und zweiten dekorativen Streifens gebildet werden kann, wenn diese vorgesehen sind, anderenfalls jedoch nach der Spritzphase für das Gießen des Mantels (2), des Gelenks (5) und des Deckels (6).
  4. Spritzgiessverfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß es anwendbar ist, um einen oder mehrere umlaufende Streifen an einer beliebigen Stelle auf der Außenseite der Wand des Mantels (2) zwischen dessen unterem Rand und dessen Oberteil (3) zu formen, indem es eine Gießaufnahme für einen Streifen nach dem Rückzug eines Ringschiebers schafft, dessen Innenwand anfänglich an dieser Stelle einen vertikalen Teil der Außenwand der Matrize des Mantels (2) begrenzt, der jedoch beiderseits dieser Stelle oder zumindest oberhalb des erhaltenen dekorativen Streifens eine gewünschte Konizität aufweisen kann.
  5. Kappe mit dekorativen Streifen, gegossen durch aufeinanderfolgende und fortlaufende Spritzungen mehrerer, insbesondere farblich verschiedener Kunststoffe, umfassend einen Mantel (2) mit einem eine Ausgußöffnung (4) aufweisenden Oberteil und einen Deckel (6), der in Höhe des Oberteils ein Verbindungsgelenk (5) hat, wobei die Kappe durch die Durchführung des Verfahrens nach Anspruch 1 erzeugt wird und dadurch gekennzeichnet ist, daß das Oberteil ihres Mantels (2) mit einem ersten gegossenen, umlaufenden dekorativen Streifen (8) versehen ist, wobei die Kappe nach Wunsch mit einem zweiten Streifen auf dem umlaufenden Rand seines Deckels sowie mit einem dritten Streifen (10) versehen werden kann, der auf dem unteren umlaufenden Rand seines Mantels liegt, der eventuell an irgendeiner beliebigen Stelleseiner Außenwand einen oder mehrere äußere umlaufende Streifen aufweisen kann, wobei der Mantel mit seinem Oberteil sowie sein Deckel und sein Verbindungsgelgenk aus einem ersten Kunststoff gegossen werden kann, während der oder die dekorativen Streifen alle insgesamt durch Spritzung von voneinander und vom ersten Kunststoff verschiedenen Kunststoffen gegossen vorgesehen werden, wobei alle diese Stoffe sich im wesentlichen durch ihre eigentliche Farbe unterscheiden, aber jeder von ihnen jedoch vorzugsweise auf Polypropylenbasis gebildet ist.
EP93401206A 1992-05-13 1993-05-12 Verfahren zum Spritzgiessen von mehreren verschiedenen Kunststoffen für eine Kappe mit dekorativen Streifen und nach diesem Verfahren hergestellte Kappen Expired - Lifetime EP0570276B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9205781A FR2691096A1 (fr) 1992-05-13 1992-05-13 Procédé de moulage par injection de plusieurs matières plastiques différentes d'une capsule à cordons décoratifs et capsule obtenue par ce procédé.
FR9205781 1992-05-13

Publications (2)

Publication Number Publication Date
EP0570276A1 EP0570276A1 (de) 1993-11-18
EP0570276B1 true EP0570276B1 (de) 1996-09-18

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EP93401206A Expired - Lifetime EP0570276B1 (de) 1992-05-13 1993-05-12 Verfahren zum Spritzgiessen von mehreren verschiedenen Kunststoffen für eine Kappe mit dekorativen Streifen und nach diesem Verfahren hergestellte Kappen

Country Status (5)

Country Link
EP (1) EP0570276B1 (de)
AT (1) ATE142936T1 (de)
DE (1) DE69304787T2 (de)
ES (1) ES2094499T3 (de)
FR (1) FR2691096A1 (de)

Families Citing this family (16)

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Publication number Priority date Publication date Assignee Title
US5755360A (en) * 1996-07-11 1998-05-26 Aptargroup, Inc. Multi-material, multi-shot, injection molded dispensing closure having a removable seal
US5927566A (en) * 1996-07-11 1999-07-27 Aptargroup, Inc. One-piece dispensing system and method for making same
US5992668A (en) * 1996-07-11 1999-11-30 Aptargroup, Inc. Sealed dispensing closure with a sealed penetrator
US5769277A (en) * 1996-07-11 1998-06-23 Aptargroup, Inc. Dispensing closure having a force-directing removable seal
FR2752411B1 (fr) * 1996-08-14 1998-10-30 Valois Organe de fixation d'un dispositif de distribution sur un col d'un reservoir
US6079594A (en) * 1997-08-21 2000-06-27 Seaquist Closures Foreign, Inc. Dispensing package with a self-sealing closure constructed from a thermoplastic material
AU718713B2 (en) * 1997-09-09 2000-04-20 Johnson & Johnson Consumer Companies, Inc. Closure
US5927549A (en) * 1998-03-20 1999-07-27 Aptargroup, Inc. Dispensing structure with frangible membrane for separating two products
US5853109A (en) * 1998-04-29 1998-12-29 Aptargroup, Inc. Dispensing structure with displaceable penetrator and bistable cover actuator
US6029866A (en) 1998-09-29 2000-02-29 Aptargroup, Inc. Multiple injection, toggle-action dispensing structure
US6305563B1 (en) 1999-01-12 2001-10-23 Aptargroup, Inc, One-piece dispensing structure and method and apparatus for making same
US6401990B1 (en) 2000-06-19 2002-06-11 Seaquist Closures Foreign, Inc. Finger-operable pump actuator with finger pad
US6481589B2 (en) 2001-02-22 2002-11-19 Seaquist Closures Foreign, Inc. Non-dispensing closure
US6739781B2 (en) * 2002-04-22 2004-05-25 Seaquist Closures Foreign, Inc. Scrubbing structure
DE102006013122A1 (de) * 2006-03-20 2007-09-27 Georg Menshen Gmbh & Co. Kg Vorrichtung zum Herstellen von Behälterverschlüssen im Zweikomponenten-Kunststoffspritzguss
DE102018000233A1 (de) * 2018-01-15 2019-07-18 Georg Menshen Gmbh & Co. Kg Behälterverschluss

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
FR2050827A5 (en) * 1969-06-26 1971-04-02 Overpelt Plascobel Nv Integrally moulded markings to contrast - with the supporting moulding
JPS6112311A (ja) * 1984-06-29 1986-01-20 Kamaya Kagaku Kogyo Kk 多色樹脂容器の成形方法
NZ215120A (en) * 1985-02-19 1986-12-05 J F Scammell Injection moulded paste dispenser with integral cap:die core initially held central by retractable spigot
FR2661127B1 (fr) * 1990-04-23 1992-07-24 Moulage Automatique Sa Procede de moulage par injection bimatiere d'une capsule comprenant un insert.

Also Published As

Publication number Publication date
DE69304787T2 (de) 1997-04-10
ATE142936T1 (de) 1996-10-15
FR2691096B1 (de) 1994-07-13
ES2094499T3 (es) 1997-01-16
EP0570276A1 (de) 1993-11-18
DE69304787D1 (de) 1996-10-24
FR2691096A1 (fr) 1993-11-19

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